after playing for a almost a day, i must say creative has done quite a good job at making it a very user friendly and feature-rich product.
you can see all the functions of the zen in this short video:
if you wish to know more about the specification of the zen, please click here to go to creative product information site.
and do take note that you must use the supplied software for transferring video files. i had tried to play a video file after transferring it into the zen using windows explorer but it gave me an error. so i had to use the supplied software to do a conversion to the converted video file once more before zen is able to play the video. i quite troublesome but i guess you have to do everything using the zen media explorer in order to get things working. it's pretty much like itune.
i would definitely recommend zen if you are looking for a portable player that is small and light and easy to use. a similar product would be the ipod touch. it can do more but comes with a heavy price tag.

promotional package for $229 at harvey norman. package consists of creative ep630 in-ear headphones, zen 4gb and 3-pin socket adapter

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